baber/WOPTO huggingface dataset:
Patent DE-3902594-A1 (DE)
Title: Arrangement for rotating the polarisation plane of a linearly polarised microwave through 180@
Inventor: CALLSEN HEINRICH DIPL ING
IPC: H01P1/165
Filed: 1989-01-28
Abstract: The invention relates to an arrangement for rotating the polarisation plane of a linearly polarised microwave through 180@, in which, for example, a T-shaped or Y-shaped aperture is arranged between two rectangular waveguides arranged mutually coaxially and turned through 90@ with respect to each other. The dimensions of the rectangular waveguides are chosen such that in both only the H10 fundamental wave mode of the microwave can propagate in each case. The polarisations of the two waves are rotated because the waveguides are likewise turned through 90@ with respect to each other. The aperture is made and fitted with PIN diodes in such a way that, from the polarisation in the incoming waveguide, a polarisation is produced in the outgoing waveguide which is perpendicular to the former. By the positioning and connecting-through according to the invention of the PIN diodes, of which there are at least two, the phase of the polarisation in the outgoing waveguide can be rotated through 180@.
Patent DE-3904281-A1 (DE)
Title: Tool turret
Inventor: THUMM HELMUT DIPL ING
IPC: B23B3/16
Filed: 1989-02-14
Abstract: In a two-axis turret for modular tool systems (7), at least some of the holders (6) for the modular tool systems (7) are arranged on the turret head (5) in such a way that, diametrically to them with regard to the second rotation axis (4), there is a gap between two holders (6), and that each of these gaps, in the direction of rotation of the turret head (5), has a width enabling a tailstock (9) to be accommodated. <IMAGE>
Patent DE-3905195-A1 (DE)
Title: Method for accurate production of precision resistors with low tolerance
Inventor: LANG JOSEF DR
IPC: H01C17/22
Filed: 1989-02-21
Abstract: Conventional production methods for precision resistors are essentially based on individual secondary processing operations (controlled adjustment) and/or sorting and rejecting the resistors produced in a preceding production run. It is intended to avoid the high technical and time expenditure, and also the acceptance of high rejection rate, which are characteristic of these methods, by virtue of the invention with the aid of a fundamentally different procedure.   For this purpose, resistors with relatively high tolerance (for example + 1%) are arranged into resistance classes within this tolerance; for example 100 classes in the range + 1% with a width of 0.02% in each case: -1.00 to -0.098%; -0.98% to -0.96%; ...-0.02 to 0%; 0 to 0.02%...0.98% to 1.00%. Resistors from these classes are combined (for example in series) in pairs, symmetrically (for example two resistors with the same nominal value from the classes -0.12 to -0.10% and 0.10 to 0.12%), and also asymmetrically (resistors with different nominal values from suitable classes) and/or multiply such that a precision resistor with low tolerance results. The division into classes can be carried out by arranging the resistors in compartments which are labelled (for example numbered) such that combinations from compartments (for example 12 and -12) corresponding to each other lead directly to the desired precision resistor. Production of precision resistors.
Patent DE-3907681-A1 (DE)
Title: Method and apparatus for dispensing quantities of solder
Inventor: POINTNER MARTIN
IPC: B23K1/20
Filed: 1989-03-09
Abstract: Printed circuit boards, which have hitherto been connected by putting in contact pins, have recently been electrically bonded via head wires (2) which are soldered to connection pads of the circuit board. To prepare the head wires (2) for soldering, according to the invention very accurate dispensing of solder is carried out, and this solder is put onto or impressed onto the head wire (2) as a solder preform (1) and is melted by means of a heating device (8). Certain shaped portions (9) on the head wire (2) provide for effective retention of the solder preforms (1) and mechanically high strength of the soldered joint on the circuit board. <IMAGE>
Patent DE-3909283-A1 (DE)
Title: Steam cooking apparatus
IPC: A47J27/16
Filed: 1989-03-21
Abstract: In the case of a steam cooking apparatus with a closable cooking chamber (10), a water supply device (13) is provided, via which fresh water can be conveyed into the movement region of an impeller (37) arranged in the cooking chamber (10) and can be atomised by the impeller (37). To heat up the cooking chamber, the impeller (37) is surrounded by a heating element (36). At the bottom of the cooking chamber, a discharge device (22) for carrying away condensed water from the cooking chamber (10) leads into a discharge (27). It is proposed to provide the discharge device (22) with a heat exchanger (17) in order to carry away heat from the condensed water and steam carried away from the cooking chamber (10). The heat exchanger (17) is connected to the water supply device (13) in such a way that the heat which is carried away is supplied to the water flowing in said water supply device. <IMAGE>
Patent DE-3909939-A1 (DE)
Title: Change-under-load transmission (powershift transmission)
Inventor: TENBERGE PETER DR
IPC: F16H47/04
Filed: 1989-03-25
Abstract: In the case of a change-under-load transmission which consists of a coupling- (1), actuating- (2) and shift-transmission part (4), the output rotational speed of the actuating-transmission part (2) can be superimposed, by means of a planetary gear system (8, 14), at least on the rotational speed of a main drive shaft (4), so that output-side coupling shafts can in each case be driven at different rotational speeds. These coupling shafts (9 and 10) can be connected to a sun gear (20) of a first planet-gear step (18) of the shift-transmission part (3), a further planet-gear step (19) of the shift-transmission part (3) being able to be connected at its web (28) to a main driven shaft (17) and being able to be braked, fixed to the housing, at its outer central gear (27). To create a compact construction of the shift-transmission part while obtaining a large number of selectable speeds using simple shifting devices, a ring gear (22) of the first planet-gear step (18) can be coupled via a coupling (24) to a web (28), connected to the main driven shaft (17) so as to be fixed in terms of rotation, of the second planet-gear step (19), and a web (23) of the first planet-gear step (18) is connected to an inner central gear (25) of the second planet-gear step (19) and can be coupled to the main driven shaft (17) (Fig. 1). <IMAGE>
Patent DE-3910073-A1 (DE)
Title: Process and apparatus for the pneumatic flow-conveyance and metering of dust-like bulk materials
Inventor: HIMMEL WALTER DR ING
IPC: B65D88/66
Filed: 1989-03-28
Abstract: The invention relates to a process and an apparatus for the pneumatic flow-conveyance and metering of dust-like bulk materials into technological reaction spaces and other assemblies. The aim of the invention is to convey dust-like bulk materials of low flowability into technological reaction spaces and other assemblies continuously, with minimum energy, with low wear and with great care.   The object of the invention is to eliminate the curtain formation in fluidised beds and the low fluctuating density of gas/solid flows in the case of dust-like bulk materials of low flowability. According to the invention, the slatted grid is suspended movably parallel to a fluidised bed between the fluidised bed and the feed pipes, is set in motion by means of a push magnet and is forced back into the initial position again by a restoring spring. The space having the push magnet is flushed with gas and kept free of dust.
Patent DE-3910493-A1 (DE)
Inventor: BECK ERICH
IPC: B29C48/10
Filed: 1989-04-01
Abstract: In order to match the compound temperature to the wall temperature of the distribution channel (12) as accurately as possible in an extrusion tool for producing tubular foil, tubes or the like, it is proposed that the distribution channel (12) extend only in a radial tool plane within a wall region formed by the tool casing (10) and/or a spindle head (21) radially covering the tool casing (10).
Patent DE-3914995-A1 (DE)
Inventor: GARTNER PETER
IPC: B05B9/08
Filed: 1989-05-08
Abstract: The invention relates to a container in the form of a bottle or can made of any desired material, in particular sheet metal or plastic, having a spray valve provided on the top and a pump device for generating an air overpressure in the container. The container is characterised in that the pump device (2) consists of a space which is integrated on the underside of the container, formed from at least one compressible wall, is open on the underside or has an opening on the underside, can be reduced by pressing down on a base and enlarged by lifting it, into which space at least one, preferably two ascending pipes (4, 5) open in the floor (3) of the container and have in each case a valve (6, 7) at the upper or lower end. <IMAGE>
Patent DE-3917272-A1 (DE)
Title: Wound coils mfg. equipment - uses ring cores with multiple windings with ends retained by clamp
Inventor: LEWIN RAINER ING GRAD
IPC: H01F41/08
Filed: 1989-05-24
Abstract: A winding table (1), pivoted about a point (21), has two identical arrangements (8). A circular core (7) is supported on a carrier (4) and can be incrementally rotated about an axis (6). The drive is provided by a pulley belt (9) driven by one pulley (10) and passes around two idler pulleys (11, 12). As the ring core increments, wire is fed through a guide (16) until the required number of windings is obtained. A number of coils with ends (19, 20) held in clamping devices (14) can be produced. ADVANTAGE - Simplifies handling of windings during mfr.
Patent DE-3920878-A1 (DE)
Inventor: STROMMER ERICH ING
IPC: C08L95/00
Filed: 1989-06-26
Abstract: In a process for manufacturing a bituminous binder modified with a thermoplastic for building materials, in particular road building materials, molten bitumen is subjected to a homogenization treatment together with a thermoplastic or a mixture of thermoplastics, preferably with an olefin polymer. In order to form molecular fragments of the thermoplastic or mixture of thermoplastics which react readily with the bitumen, a quantity of energy corresponding to the difference between the treatment temperature and the decomposition temperature of the thermoplastic(s) is supplied in the form of kinetic energy to the material containing the bitumen and a thermoplastic or mixture of thermoplastics and the material is abruptly decelerated against a impact surface. Preferably the mixture containing the bitumen and a thermoplastic or mixture of thermoplastics is forced through a narrow gap between two facing mixing implements rotating relative to each other.
Patent DE-3926048-A1 (DE)
Title: Method of producing embedded heat exchanger panels - has panel rolled from copper block with through holes followed by inflation with compressed air
Inventor: CLAUSING DIETER DIPL ING
IPC: B21B47/04
Filed: 1989-08-07
Abstract: The heat exchanger panel is intended for plastering into walls, ceilings and floors and forms part of a room heating or cooling system. The panel starts off as a copper block with say four 20 mm dia. through holes machined or cast in it. To prevent welding of the holes during a subsequent rolling process they are filled with magnesium oxide powder. The block is hot rolled down to 12 mm thickness and then cold rolled down to 0.8 mm thickness to produce a panel about 2500 mm long. The area between the through holes is given a pattern of perforations and reduced further in thickness. Finally the through holes are inflated by compressed air. USE/ADVANTAGE - Panel can easily be embedded into conventional building materials. Economical method of production.
Patent DE-3937036-A1 (DE)
Title: Regulating pulsed current for three=phase motor - using two point regulator controlling transistor or thyristor power output stage
Inventor: BECKER GERHARD
IPC: H02P23/00
Filed: 1989-11-07
Abstract: A two point regulator (18) is coupled to a summing element (4) supplied with the actual and the required motor currents (X,W) and a sawtooth clock signal (D'). The amplitude of the latter is adjusted in dependence on the EMF of the motor (M) in inverse proportion, the summing element (4) being further supplied with an EMF pre-control signal (E). Pref. the current regulator (15) supplied with the difference between the actual and required motor current provides an output (B) limited by the positive and negative peak values of the clock signal. ADVANTAGE - Improved characteristic at higher frequencies.
Patent DE-3937443-A1 (DE)
Inventor: BRANDL SEBASTIAN DIPL ING
IPC: G01D5/347
Filed: 1989-11-10
Abstract: A photoelectric angle-measuring device (1) represented in Figure 2 operates according to the so-called three-grating-transducer principle, to be precise using the transmitted-light method. Provided for scanning the diameter is a deflecting prism (6) in which diffracted component beam bundles of the +1 and -1 order are deflected once. Subsequently, they are diffracted once again at an index grating (7) and are reunited at the combination grating region (3V) of the grating system (3). They interfere with one another there and are focused by a condenser (8) onto photodetectors (9). <IMAGE>
Patent DE-3942793-A1 (DE)
Inventor: KAMPMANN DETLEF DIPL CHEM DR
IPC: C07C209/26
Filed: 1989-12-23
Abstract: The present invention relates to a process for the preparation of N,N-dimethylamines by reaction of an aldehyde with dimethylamine and hydrogen under pressure and at elevated temperature in the presence of a hydrogenation catalyst containing Ni, Co, Cu, Mn, Fe, Rh, Pd and/or Pt. After separating off unconverted dimethylamine and excess hydrogen, formaldehyde or a formaldehyde-forming substance is added, and distillation is carried out.
Patent DE-4001559-A1 (DE)
Title: Vibrating table for aligning edges of sheets formed into stack - has motor-driven unbalanced disc
Inventor: EXNER ANDREAS
IPC: B65H31/40
Filed: 1990-01-20
Abstract: The edges of individual sheets of paper or cardboard formed into a stack, are aligned exactly with each other by means of a vibrating table.  This vibrating table is so mounted that it is inclined to the horizontal with one corner of the table being at the lowest point. The adjacent edges extending from this lowest point are provided with stops  to retain the stack of paper or cardboard. An electric motor (7) is fitted to the underside of the table (3). The motor shaft carries a fixed out-of-balance disc (11) and a positionally adjustable out-of-balance disc (9) to enable the amplitude of the vibration of the table, induced by the rotation of the motor, to be adjusted. USE - Arranging sheets of paper etc. in stacks.
Patent DE-4005885-A1 (DE)
Title: Security cover for engine oil top up point - has sprung cover and sealing plate, having no requirement for removal from engine
Inventor: SCHWARZ WERNER
IPC: F01M11/04
Filed: 1990-05-10
Abstract: Security cover for motor oil top up point, which is not removable from the engine. The cover has a gear system and two lock pins on a bayonet lock (6). It is only possible to fill with motor oil when the cover (1) is moved by hand to an open position and held there until filling is complete. The cover and sealing plate close automatically under spring pressure. ADVANTAGE - Can not be removed from engine.
Patent DE-4008121-A1 (DE)
Title: Storage tank for storing living sea creatures under natural conditions - includes ozoniser supplying ozone to sprayed synthetic sea-water to eliminate bacteria, etc.
Inventor: DELL OLIO ANDREAS
IPC: A01K61/30
Filed: 1990-03-14
Abstract: Marine invertebrates such as mussels or sea-urchins intended for consumption in restaurants etc. are kept in healthy condition, e.g. for a week or so in a conainer whose roof has a rotary sprinkler supplied air water whose correct salinity is maintained from a salt water reservoir with filter. An agoniser is connected by a pump to supply O3 for countering bacteria and other contaminating parasites etc., at least for a limited period. ADVANTAGE - Storage unit has low current consumption and can be easily cleaned. (Previously notified in Week 9139) (4pp Dwg.No.0/1)
Patent DE-4010264-A1 (DE)
Title: One trolley shopping system for self service supermarkets
Inventor: EBERLEIN HERBERT DIPL ING
IPC: A47F9/04
Filed: 1990-03-30
Abstract: The self service shopping system comprises a trolley with a shopping container (6), a cash desk with a till system, and a shelf on the trolley for the customer`s own carrying containers (5). The carrying containers can either be placed on the shelf in a position of non-use allowing the shopping coontainer to be used, or irrespective of the position of the container the at least one crrying container can be set down in a position of non-use elsewhere on the trolley.  After purchase and after removing the goods from the shopping container for the purpose of billing, the container is moved either manually or automatically into a position of non-use which now makes the shel fully serviceable. The carrying container is brought into the positionof use and can be set on the shelf for the purpose of loading and subsequent onward conveyance. The customers can be provided with their own shopping containers which the customers can place over their own carrying containers on the trolley.
Patent DE-4012301-A1 (DE)
Inventor: KASSNER JUERGEN
IPC: E02B3/12
Filed: 1990-04-18
Abstract: Formwork shell for making a concrete, insulating, sealing, drainage or floating base layer in foundation work which has woven walls (1, 2) which are interwoven at least at the edges (4, 5, 6, 7) of the formwork shell and joined together via woven spacers (8) in such a way that, when a setting, insulating, sealing or waterway material is inserted, the bulging of the walls (1, 2) is limited. In order to separate different materials from one another in the formwork shell, the latter has a third wall (3) interwoven with the other two walls (1, 2) at the edges (4, 5, 6, 7) and joined to the central wall (2) via woven spacers (9) so that the space between the central (2) and third (3) walls can also be filled.
Patent DE-4015473-A1 (DE)
Title: Automotive trailer hitch - has detachable locking member on drawbar and clear of clamping nut
Inventor: GLAESSNER RALF
IPC: B60D1/28
Filed: 1990-05-14
Abstract: The automotive trailer hitch comprises a coupling body (19) with draw-bar (12) accommodated in the bore (24) of a bearing (22), in which it is clamped in the axial direction by one or more elastic thrust rings (32,52). A supporting face (14) on the body bears in the axial direction against the bearing end face, while a clamping nut (38) is screwed onto the threaded end (16) of the drawbar furthest from the body and locked in position, bearing against the other end face. A detachable locking member (74) fits onto the drawbar end furthest from the body and clear of the nut. If the latter works loose or bears against, loosening of the body can be detected without the need for any further equipment.
Patent DE-4016766-A1 (DE)
Title: Long-term care of pot plants - involves capillary supply of water from bowl
Inventor: BLOCK HUBERT K
IPC: A01G27/00
Filed: 1990-05-25
Abstract: In a device for long-term care of plants in vessels, the inner vessel (2) has an annular divided foot (4), the cuts (5) in which take a waterproof container (3) having a shaft (6) which projects into an opening (8) in the inner vessel (2), having perforations (12) in its upper end, and forming an inner water reservoir (9) between the inner vessel (2) and the lower vessel (1). The free space (10) takes water dripping from the root-ball space (11). The lower vessel (1) has several holes (13) for filling and monitoring the water and for aeration. The space between the lower vessel (1) and the inner vessel (2) forms an outer water reservoir (18) connected with the inner reservoir (9). USE/ADVANTAGE - Ensures long-term supply of water to the plant roots by watering at intervals, combined with adequate root aeration and preventing acidification of the water by plant roots, earth or leaves.
Patent DE-4018855-A1 (DE)
Title: Heating regulator programme data input and updating
Inventor: ABEL HELMUT
IPC: F24D19/10
Filed: 1990-06-13
Abstract: The programme data input and updating is used to define a variable temp. profile for the heating regulator, allowing different required room temps. to be used for different points during the day.  The user enters specified required temps. via a setting device, from which a basis profile programme is obtained with subsequent correction of the basic profile via a learning process. Different temp. programmes can be used for weekdays and weekends.
Patent DE-4039095-A1 (DE)
Inventor: KETTING MICHAEL DIPL ING DR
IPC: B62D55/092
Filed: 1990-12-07
Abstract: A sealing arrangement is provided for hinges of crawler chains having hinges composed of a bolt and a bush. The outer chain links are secured to the bolts and the inner chain links are secured to the bush. The bolts contain a reservoir that can be filled with a lubricant and that is in communication by means of a cross-channel with the lubricating slot located between the bush and the bolt, the ends of which are sealed by seals that are sealingly supported on the one hand by the outer chain links and on the other hand by the bush ends, a dimensionally stable supporting element being arranged between each bush end and each outer chain link. In order to obtain a sealing arrangement that ensures that the forces manifesting at the hinge are limited to the link between the bush and the link chain, the supporting element (9) is shaped in a single piece at the ends of the bushes and the lubricating slot (7) is linked to the seal (8) receiving space (10) by lubricating grooves or channels formed in the front surface of the shaped supporting element (9) and/or bush bodies, and/or lubricating through-holes or channels are formed through the bush bodies, linking the lubricating slot (7) with the sealing space (10).
Patent DE-4101276-A1 (DE)
Title: Space frame constructed from bars and nodal joints - has elements to vary angular positions of bars relative to each other
Inventor: GRIMM FRIEDRICH BJOERN DIPL IN
IPC: E04B1/19
Filed: 1991-01-17
Abstract: A space frame is constructed from straight or curved bars (12, 14) which are connected to each other at their ends by nodal joint elements (52). The nodal elements are so designed that the angular positions of the bars relative to each other can be varied and when the bars are in their required positions they can be locked in those positions. The locking device may consist of a disc, with rough surfaces, which is clamped between the joint faces of a bar and a nodal element. USE/ADVANTAGE - Space frame with variable angular position of the bars forming the frame. (24pp Dwg.No.2/20)
Patent DE-4102488-A1 (DE)
Title: Flexible spacer for locating joints in tiling - has continuous core with a series of protrusions along its length
Inventor: MANKAU DIETER
IPC: E04F15/02
Filed: 1991-01-29
Abstract: A flexible spacing guide for making joints in wall or floor tiles has a flexible centre braid (1) of synthetic material or steel and a medium-hard, durable cover (2) of synthetic, rubber or similar material. The cover has a series of annular protrusions (3) and recesses (4) spaced at such a distance that pref. several protrusions contact each tile. Alternatively the centre braid can be omitted. As a further alternative the protrusions can be beads which can be moved along a centre braid. USE/ADVANTAGE - Provides a convenient way of inserting temporary spacers between tiles while they are being placed in position.